Mark Rowley, national lead for Counter Terrorism Policing and Met Acting Deputy Commissioner corrected earlier figures saying three innocent victims - Pc Palmer, a woman in her mid 40s and a man in his mid 50s - were killed along with the attacker who was shot by cops.

Car hire firm Enterprise has confirmed that one of their cars had been rented out and used in the attack, saying in a statement: "We can confirm that the car used in the tragic attack in London yesterday afternoon was one of ours.

"An employee identified the vehicle after seeing the licence plate in an image online. We ran another check to verify, and immediately contacted the authorities.

"We are co-operating fully with the authorities and will provide any assistance that we can to the investigation.

"Our thoughts are very much with the victims of this terrible tragedy."

Those injured in the Westminster Bridge attack

Theresa May has confirmed 29 people were hurt when the speeding car smashed into crowds on Westminster Bridge.

'I ONLY STARTED THIS FOR MY KIDS'

In a message to staff she said: "One of our officers died protecting the public and Parliament. We will never forget his courage.

"My deepest sympathy is with his family and with the loved ones of everyone who lost their lives.

"My thoughts too are with the members of the public and our officers who were injured as well as those people affected by these appalling events.

"As many Parliamentarians have noted, our officers ran towards danger to do their jobs. We are indebted to their bravery.

"Officers and staff from the Metropolitan Police are working as hard as we can to protect the public and our capital city.

"I am grateful for all their efforts."

TIMELINE OF TERROR

Lone wolf attacker mowed down crowds of pedestrians in 4x4 on Westminster Bridge

He then crashed into gate outside Parliament before stabbing policeman PC Keith Palmer, 48, to death

Armed cops put Westminster on lockdown as attack brought London to a standstill yesterday afternoon

Four people died - including the attacker who was shot by police - and 29 are injured, including seven critical

Eight people arrested today after six raids at addresses in London, Birmingham and elsewhere

Cops believe they know the identity of the suspect who was inspired by Islamic terrorism

The Hyundai used to carry out the attack was hired last Thursday in Birmingham, according to Newsnight

Hero MP Tobias Ellwood attempted to revive PC Palmer but husband and father could not be saved

Theresa May condemned attack as 'sick and depraved' before holding emergency Cobra meeting

MPs were locked in House of Commons for five hours

PC Palmer, a member of the Parliamentary and Diplomatic Protection Squad and former Bombardier in the Royal Artillery Army Reserve between '87-'01 , was killed as he tried to stop the attacker at about 2.30pm on Wednesday, while two members of the public were also fatally injured.

A body was seen on Westminster Bridge with police confirming they are treating the incident as a terror attack

Another woman who fell into the Thames was rescued and given urgent medical treatment on a nearby pier.

A party of French schoolchildren were among those targeted on the bridge, while four students from Edge Hill University in Ormskirk were also hurt - two described as "walking wounded", and others said to have minor injuries.

The attack came on the first anniversary of the Brussels airport bombings.

The Muslim Council of Britain said: "We are shocked and saddened by the incident at Westminster. We condemn this attack and while it is still too early to speculate on the motives, our thoughts and prayers are for the victims and those affected."